CN219538693U - Dry and comfortable leak-proof absorbing article - Google Patents

Abstract

The utility model provides a dry and comfortable leak-proof absorbing article which sequentially comprises a surface layer, a leak-proof component, an absorbing layer and a bottom layer from top to bottom; the two leakage-proof parts are symmetrically arranged left and right; the leakage-proof component is formed by sandwiching a polyurethane foam cotton layer by wet-process super absorbent resin absorbent paper, and the sandwiching angle is more than 0 degrees and less than or equal to 45 degrees; the polyurethane foam cotton layer is provided with a plurality of through holes penetrating through the upper surface and the lower surface of the polyurethane foam cotton layer. The dry and comfortable leak-proof absorbent article has the advantages of high absorption speed, excellent leak-proof performance and excellent dry and comfortable performance.

Description

Dry and comfortable leak-proof absorbing article

Technical Field

The utility model relates to the technical field of physiological sanitary products, in particular to a dry and comfortable leakage-proof absorbing product.

Background

Along with the development of the times, the requirements of consumers on sanitary absorbent articles are continuously improved, and the absorbent articles are required to have the properties of high absorption speed, dryness, side leakage prevention and the like; however, the existing absorbent articles still have the problem of side leakage effect and dry performance to be improved.

Therefore, in view of the above shortcomings, it would be highly desirable to provide a new dry and leak-proof absorbent article.

Disclosure of Invention

In order to solve one or more technical problems of the existing absorbent articles, the utility model provides a dry and leak-proof absorbent article. The dry and comfortable leak-proof absorbent article has the advantages of high absorption speed, excellent leak-proof performance and excellent dry and comfortable performance.

The utility model provides a dry and comfortable leak-proof absorbing article which sequentially comprises a surface layer, a leak-proof component, an absorbing layer and a bottom layer from top to bottom; the two leakage-proof parts are symmetrically arranged left and right; the leakage-proof component is formed by sandwiching a polyurethane foam cotton layer by wet-process super absorbent resin absorbent paper, and the sandwiching angle is alpha, and alpha is more than 0 degrees and less than or equal to 45 degrees; the polyurethane foam cotton layer is provided with a plurality of through holes penetrating through the upper surface and the lower surface of the polyurethane foam cotton layer.

Preferably, 15 DEG < alpha < 45 deg.

Preferably, the aperture of the through holes is 0.5-5 mm, and the interval distance between two adjacent through holes is 1-3 mm.

Preferably, the aperture of the through holes is 1-2 mm, and the interval distance between two adjacent through holes is 1-3 mm.

Preferably, the absorption layer comprises a first absorption layer, a second absorption layer and a third absorption layer from top to bottom.

Preferably, the first absorbing layer is a polyurethane foam cotton layer, and a plurality of through holes penetrating through the upper surface and the lower surface of the polyurethane foam cotton layer are arranged in the polyurethane foam cotton layer; the second absorption layer comprises a non-woven fabric layer and a high water absorption resin fluff pulp layer wrapped in the non-woven fabric layer; and/or the third absorption layer is made of super absorbent resin absorbent paper by wet method.

Preferably, the widths of the first absorption layer and the third absorption layer are the same, and the width of the second absorption layer is smaller than the width of the first absorption layer; the minimum gap distance between the two leakage preventing parts is 0.6-1 times of the width of the second absorption layer.

Preferably, the dry and leak-proof absorbent article further comprises a moisture barrier layer disposed between the first absorbent layer and the second absorbent layer.

Preferably, the surface layer is a hot air nonwoven fabric, a spun-bonded nonwoven fabric or a pure cotton nonwoven fabric.

Preferably, the bottom layer is a breathable PE bottom film layer.

The utility model has at least the following beneficial effects:

(1) The dry and comfortable leakage-proof absorbing article is provided with the leakage-proof component, the leakage-proof component is of a structure that a polyurethane foam cotton layer is clamped by wet-process high-absorbent resin absorbent paper which is bilaterally symmetrical, and a plurality of vertical through holes penetrating through the upper surface and the lower surface of the polyurethane foam cotton layer are arranged in the polyurethane foam cotton layer, so that the leakage-proof component has strong liquid absorption capacity, is beneficial to liquid infiltration, is non-porous on the side surface of the leakage-proof component, can play a role in blocking flow, effectively prevents the lateral diffusion of absorbed liquid, has an angle alpha of less than or equal to 45 DEG, and always presents a smooth inclined plane near the middle position when the liquid absorption expansion is carried out, which is beneficial to the concentrated absorption of the liquid at the central part of the absorbing article to a certain extent, and can quickly conduct the liquid to the absorbing layer; compared with the leakage-proof component formed by adopting relatively fixed multi-layer super absorbent resin absorbent paper with gradually increased width from top to bottom in the prior art, the leakage-proof component has stronger overall liquid absorption expansion capacity, can effectively prevent the lateral diffusion of absorbed liquid, ensures that the lateral diffusion of an absorbing article is smaller, can effectively block the liquid from diffusing to two sides, effectively avoids side leakage, and improves the side leakage prevention effect; the anti-leakage component can conveniently adjust the clamping angle of the anti-leakage component according to the arrangement position and the thickness of the polyurethane foam cotton layer, the bilateral symmetry angle is more than 0 degrees and less than or equal to 45 degrees, the transverse diffusion area is small, and the side leakage can be effectively prevented.

(2) The absorbent layer in the dry and leak-proof absorbent article is preferably formed by combining a layer of polyurethane foam cotton provided with through holes, a layer of non-woven fabric wrapped super absorbent resin and fluff pulp and a layer of wet-process super absorbent resin absorbent paper, and compared with other absorbent layers, the absorbent layer formed by matching can greatly improve the absorption capacity of the absorbent article and obviously improve the dryness of the absorbent article.

(3) The dry and comfortable leak-proof absorbent article has the advantages of high absorption speed, excellent leak-proof performance and excellent dry and comfortable performance.

Drawings

The drawings of the present utility model are provided for illustrative purposes only and the proportion and the size of the parts in the drawings do not necessarily coincide with the actual products.

FIG. 1 is a schematic structural view of a dry, leak-proof absorbent article in accordance with some embodiments of the present utility model.

FIG. 2 is a schematic structural view of a dry and leak-proof absorbent article in accordance with further embodiments of the present utility model.

FIG. 3 is a schematic structural view of a dry and leak-proof absorbent article in accordance with yet other embodiments of the present utility model.

In the figure: 1: a surface layer; 2: a leakage preventing member; 21: wet making high water absorption resin water absorption paper; 22: a polyurethane foam cotton layer; 221: a through hole; 3: a first absorbent layer; 4: a second absorbent layer; 5: a third absorbent layer; 6: a bottom layer; 7: a moisture barrier layer; 71: a non-woven fabric layer is arranged on the upper surface; 72: a lower non-woven fabric layer; 73: a hollow tube.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments of the present utility model will be clearly and completely described in the following in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The present utility model provides a dry and leak-proof absorbent article, for example, as shown in fig. 1-3, fig. 1 being a schematic structural view of the dry and leak-proof absorbent article in some embodiments of the present utility model; FIG. 2 is a schematic structural view of a dry, leak-proof absorbent article according to further embodiments of the present utility model; FIG. 3 is a schematic structural view of a dry and leak-proof absorbent article in accordance with yet other embodiments of the present utility model.

The utility model provides a dry and comfortable leakage-proof absorbent article, for example, as shown in figure 1, which sequentially comprises a surface layer 1 (also called a liquid-permeable surface layer), a leakage-proof component 2, an absorption layer and a bottom layer 6 (also called a breathable bottom layer) from top to bottom; two leakage-proof parts 2 are symmetrically arranged left and right; in the utility model, the leakage-proof component 2 is symmetrically arranged on the left and right in the width direction of the dry leakage-proof absorbent article; the leakage prevention component 2 is formed by sandwiching a polyurethane foam cotton layer 22 between wet-process super absorbent resin absorbent paper 21, and the sandwiching angle is alpha, 0 degrees is less than alpha and less than or equal to 45 degrees, in other words, the leakage prevention component 2 comprises wet-process super absorbent resin absorbent paper 21 and polyurethane foam cotton layer 22 sandwiched in wet-process super absorbent resin absorbent paper 21, and the sandwiching angle is alpha, 0 degrees is less than alpha and less than or equal to 45 degrees; in the present utility model, the wet-process super absorbent resin absorbent paper 21 has an open end when sandwiching the polyurethane foam cotton layer 22, the open end being away (away from) the central portion of the dry and leak-proof absorbent article; specifically, for example, the leakage preventing member 2 is constituted by a layer of wet-process super absorbent resin absorbent paper 21 sandwiching a polyurethane foam layer 22; the polyurethane foam cotton layer 22 is provided with a plurality of through holes 221 penetrating the upper and lower surfaces of the polyurethane foam cotton layer 22, and in the present utility model, the through holes 221 are vertically and vertically arranged in the polyurethane foam cotton layer 22; in the present utility model, the polyurethane foam layer 22 is polyurethane foam using a known material; in the present utility model, "a plurality of" means two or more, the shape, the number and the size of the through holes 221 are not particularly limited, and those skilled in the art can set the shape, the number and the size as required; preferably, the plurality of through holes 221 are uniformly distributed in the polyurethane foam layer 22, the pore diameter of the through holes 221 may be, for example, 0.5 to 5mm, preferably 1 to 2mm, the spacing distance between two adjacent through holes 221 may be, for example, 1 to 10mm, preferably 1 to 3mm, and the through holes 221 may be, for example, circular through holes, square through holes or oval through holes, and preferably, the through holes are circular through holes; the dry and leak-proof absorbent article of the present utility model may be, for example, a diaper, a pull-up diaper, a sanitary napkin, a pants-type sanitary napkin, or an incontinence napkin, and is preferably a sanitary napkin.

The dry and comfortable leakage-proof absorbing article is provided with the leakage-proof component, the leakage-proof component is of a structure that a polyurethane foam cotton layer is clamped by wet-process high-absorbent resin absorbent paper which is symmetric left and right, and a plurality of through holes penetrating through the upper surface and the lower surface of the polyurethane foam cotton layer are arranged in the polyurethane foam cotton layer, so that the leakage-proof component has strong liquid absorbing capacity, is beneficial to liquid infiltration, the side surface of the leakage-proof component is pore-free, effectively prevents the transverse diffusion of absorbed liquid, and has an clamping angle alpha, the angle alpha is less than or equal to 45 degrees, and the leakage-proof component always presents a smooth inclined plane near the middle position when absorbing liquid expands, which is beneficial to the concentrated absorption of the liquid at the central part of the absorbing article to a certain extent, and can quickly conduct the liquid to the absorbing layer; compared with the leakage-proof component formed by adopting relatively fixed multi-layer super absorbent resin absorbent paper with gradually increased width from top to bottom in the prior art, the leakage-proof component has stronger overall liquid absorption expansion capacity, can effectively prevent the lateral diffusion of absorbed liquid, ensures that the lateral diffusion of an absorbing article is smaller, can effectively block the liquid from diffusing to two sides, effectively avoids side leakage, and improves the side leakage prevention effect; the anti-leakage component can conveniently adjust the clamping angle of the anti-leakage component according to the arrangement position and the thickness of the polyurethane foam cotton layer, the bilateral symmetry angle is more than 0 degrees and less than or equal to 45 degrees, the transverse diffusion area is small, and the side leakage can be effectively prevented.

According to some preferred embodiments, 15 DEG < alpha < 45 deg.

According to some preferred embodiments, the aperture of the through holes 221 is 0.5 to 5mm, and the interval distance between two adjacent through holes 221 is 1 to 3mm.

According to some preferred embodiments, the aperture of the through holes 221 is 1-2 mm, and the interval distance between two adjacent through holes 221 is 1-3 mm.

In the present utility model, the leakage preventing member 2 may include a polyurethane foam layer 22 having a long strip-shaped structure or a three-dimensional right trapezoid structure, for example.

According to some preferred embodiments, the leakage preventing member 2 includes a polyurethane foam layer 22 having a three-dimensional right trapezoid structure, for example, as shown in fig. 2; the included angle between the inclined plane and the bottom surface of the three-dimensional right trapezoid structure is the same as the clamping angle alpha, the three-dimensional right trapezoid structure and the wet method are better in fit, stable in structure and not easy to deform, and as the whole polyurethane foam cotton layer is fully fitted with the wet method high water absorption resin water absorption paper, the blank area of the polyurethane foam cotton layer does not exist, the liquid absorption performance and the liquid absorption expansion capacity of the polyurethane foam cotton layer can be fully utilized, the liquid infiltration is facilitated, and the lateral diffusion of absorbed liquid is effectively prevented.

According to some preferred embodiments, the absorbent layer comprises, in order from top to bottom, a first absorbent layer 3, a second absorbent layer 4 and a third absorbent layer 5.

According to some preferred embodiments, the first absorbent layer 3 is a polyurethane foam layer, and a plurality of through holes penetrating the upper and lower surfaces of the polyurethane foam layer are provided in the polyurethane foam layer, and the hole diameter of the through holes may be, for example, 0.5 to 5mm, preferably 1 to 2mm, and the interval distance between two adjacent through holes may be, for example, 0.5 to 5mm, preferably 1 to 3mm; the second absorption layer 4 comprises a non-woven fabric layer and a high water absorption resin fluff pulp layer wrapped in the non-woven fabric layer; in the utility model, the high water absorption resin fluff pulp layer is of a known structure, namely, is formed by mixing the high water absorption resin and fluff pulp of the known materials, and can also be marked as a mixed layer of the high water absorption resin and the fluff pulp or a composite material layer of the high water absorption resin and the fluff pulp; and/or the third absorbent layer 5 is a wet-process super absorbent resin absorbent paper.

The absorbent layer in the dry and leak-proof absorbent article is preferably formed by combining a layer of polyurethane foam cotton provided with through holes, a layer of non-woven fabric wrapped super absorbent resin and fluff pulp and a layer of wet-process super absorbent resin absorbent paper, and compared with other absorbent layers, the absorbent layer formed by matching can greatly improve the absorption capacity of the absorbent article and obviously improve the dryness of the absorbent article.

According to some preferred embodiments, the width of the first absorbent layer 3 and the third absorbent layer 5 are the same, and the width of the second absorbent layer 4 is smaller than the width of the first absorbent layer 3; the minimum gap distance L between the two leakage preventing parts 2 is 0.6-1 times of the width of the second absorption layer 4, which is beneficial to the concentrated absorption of liquid in the central part of the absorption article; the left edge portion of one of the leakage preventing members 2 is flush with the left edge portion of the first absorbent layer 3, and the right edge portion of the other leakage preventing member 2 is flush with the right edge portion of the first absorbent layer 3.

According to some preferred embodiments, the dry and leak-proof absorbent article further comprises a moisture barrier layer 7 arranged between the first absorbent layer 3 and the second absorbent layer 4, the moisture barrier layer 7 having the same width as the first absorbent layer 3; for example, as shown in fig. 3; the moisture barrier layer 7 includes an upper nonwoven fabric layer 71, a lower nonwoven fabric layer 72, and a plurality of hollow tubes 73 vertically (vertically) disposed between the upper nonwoven fabric layer 71 and the lower nonwoven fabric layer 72, the upper nonwoven fabric layer 71 being closer to the first absorbent layer 3 than the lower nonwoven fabric layer 72; in the present utility model, a plurality of the hollow tubes 73 may be uniformly distributed between the upper nonwoven fabric layer 71 and the lower nonwoven fabric layer 72, for example, and the hollow tubes 73 have a hollow tubular structure; in the present utility model, the hollow tube 73 is a flexible hollow tube, and may be made of a flexible material, specifically, may be made of flexible polypropylene or polypropylene fiber cloth, and the flexible polypropylene or polypropylene fiber cloth is made of a known material, so that the hollow tube is soft and comfortable, and the upper non-woven fabric layer and the lower non-woven fabric layer are made of a known material, so that the type of non-woven fabric is not specifically limited, and a conventional type may be adopted; in the utility model, the two ends of the pipe orifice of the hollow pipe are respectively adhered with the upper non-woven fabric layer and the lower non-woven fabric layer.

The dry and comfortable leak-proof absorbing article also comprises a moisture-isolation layer with a hollow tube, wherein compared with a structure in which a conventional non-woven fabric layer is provided with a diversion hole, the hollow tube is soft and has a continuous diversion effect, and can quickly conduct liquid to a second absorbing layer for absorption; more importantly, although the existing product also has certain capability of reducing reverse osmosis, the existing absorbent product is in a tightly-adhered layer-by-layer structure, so that the problem that liquid easily seeps out of the surface layer to influence dryness of the absorbent product when the existing absorbent product is pressed or particularly used for people with relatively large menstrual blood is solved, the hollow Guan Weixing has better capability, can provide a certain absorption space and a storage space, can effectively store liquid, can effectively prevent reverse osmosis of the liquid, and has more obvious reverse osmosis reducing effect.

According to some preferred embodiments, the hollow tube 73 is a hollow tube formed of polypropylene fiber cloth.

The utility model does not limit the number, shape, pipe diameter size and distance between the upper end and the lower end of the hollow pipe; preferably, the hollow tube 73 is a circular tube; the upper nonwoven fabric layer 71 and the lower nonwoven fabric layer 72 have the same thickness, and the distance between the upper and lower ends of the hollow tube 73 is 1 to 3 times the sum of the thicknesses of the upper nonwoven fabric layer 71 and the lower nonwoven fabric layer 72.

According to some preferred embodiments, the hollow tubes 73 have a tube diameter of 0.2 to 5mm, preferably 0.5 to 3mm, and the spacing distance between two adjacent hollow tubes 73 is, for example, 0.2 to 5mm, preferably 1 to 4mm.

According to some preferred embodiments, the surface layer 1 is a hot air nonwoven fabric, a spun-bonded nonwoven fabric, a pure cotton nonwoven fabric, or a bamboo fiber or other nonwoven fabric, and preferably, the surface layer 1 is a fine denier hot air nonwoven fabric (soft fine denier hot air nonwoven fabric), and the fiber denier used is 0.5-1.5 denier.

According to some preferred embodiments, the bottom layer 6 is a breathable PE bottom film layer (also denoted PE breathable bottom film layer).

In particular, in the present utility model, the layers included in the dry and leak-proof absorbent article may be bonded together in sequence, for example, by a glue-sprayed layer, that is, by a hot melt adhesive, and the peeled-off state between the layers shown in fig. 1, 2 and 3 is merely for clarity of illustration of the structure of the layers; in the utility model, the wet-process super absorbent resin absorbent paper is formed by uniformly distributing super absorbent resin between two raw paper layers through the existing wet papermaking process; in the present utility model, the wet papermaking process may be, for example, a wet papermaking process disclosed in chinese patent application CN 201710966882.0; the gram weight of the wet-process super absorbent resin absorbent paper can be 30-300 g/m ² Preferably 70 to 150g/m ² 。

The utility model is further illustrated below with reference to examples. These examples are merely illustrative of preferred embodiments of the present utility model and the scope of the present utility model should not be construed as being limited to these examples only.

Example 1

A dry and leak-proof absorbent article comprises a surface layer, a leak-proof component, a first absorbent layer, a second absorbent layer, a third absorbent layer and a bottom layer from top to bottom. The surface layer is a hot air non-woven fabric, and the bottom layer is a breathable PE bottom film layer; the first absorption layer is a layer of polyurethane foam cotton, a plurality of through holes penetrating through the upper surface and the lower surface of the polyurethane foam cotton are uniformly formed in the polyurethane foam cotton, the aperture of each through hole is 1mm, and the interval distance between the two through holes is 1mm; the second absorption layer comprises a non-woven fabric layer and a high water absorption resin fluff pulp layer wrapped in the non-woven fabric layer; the third absorption layer is a layer of wet-process super absorbent resin absorbent paper; the widths of the first absorption layer and the third absorption layer are the same, and the width of the second absorption layer is smaller than that of the first absorption layer; the two leakage-proof parts are symmetrically arranged left and right; the leakage-proof component is formed by sandwiching a polyurethane foam cotton layer with a strip-shaped structure by a layer of wet-process super absorbent resin absorbent paper, the sandwiching angle is 45 degrees, the wet-process super absorbent resin absorbent paper is provided with an open end when sandwiching the polyurethane foam cotton layer, and the open end is far away from the central part of the dry leakage-proof absorbing article; a plurality of through holes penetrating through the upper surface and the lower surface of the polyurethane foam cotton layer are formed in the polyurethane foam cotton layer in the leakage-proof component, the aperture of each through hole is 1mm, and the interval distance between the two through holes is 1mm; the minimum gap distance between the two leakage preventing members is 0.8 times the width of the second absorbent layer, one of the left side edge parts of the leakage preventing members is flush with the left side edge part of the first absorbent layer, and the other of the right side edge parts of the leakage preventing members is flush with the right side edge part of the first absorbent layer.

Example 2

Example 2 is substantially the same as example 1 except that: no leakage preventing component.

Example 3

Example 3 is substantially the same as example 1 except that: the anti-leakage component is not arranged, the absorbing article sequentially comprises a surface layer, an absorbing layer and a bottom layer from top to bottom, the absorbing layer is a structure of four layers of dry-method water-making absorbent paper which is formed by mixing super absorbent resin and fluff pulp between two layers of wet-strength paper layers through a dry-method papermaking process.

Example 4

Example 4 is substantially the same as example 1 except that: the leakage-proof components are arranged differently; two leakage-proof parts are arranged symmetrically left and right in the embodiment; the leakage prevention component is composed of three layers of wet-process high-absorbent resin absorbent paper with different widths, the width of the leakage prevention component is gradually increased from top to bottom, one leakage prevention component is arranged on the left side edge of the high-absorbent resin absorbent paper by the three layers of wet-process high-absorbent resin absorbent paper and is flush with the left side edge of the first absorbent layer, the other leakage prevention component is arranged on the right side edge of the high-absorbent resin absorbent paper by the three layers of wet-process high-absorbent resin absorbent paper and is flush with the right side edge of the first absorbent layer, and the minimum gap distance between the two leakage prevention components is 0.8 times of the width of the second absorbent layer.

Example 5

Example 5 is substantially the same as example 1 except that:

the leakage-proof component is composed of a polyurethane foam cotton layer with a right trapezoid structure formed by sandwiching a layer of wet super absorbent resin absorbent paper, the sandwiching angle alpha is 45 degrees, the included angle between the inclined plane and the bottom surface of the three-dimensional right trapezoid structure is 45 degrees, the wet super absorbent resin absorbent paper is provided with an open end when sandwiching the polyurethane foam cotton layer, and the open end is far away from the central part of the dry leakage-proof absorbing article; a plurality of through holes penetrating through the upper surface and the lower surface of the polyurethane foam cotton layer are formed in the polyurethane foam cotton layer in the leakage-proof component, the aperture of each through hole is 1mm, and the interval distance between the two through holes is 1mm; the minimum gap distance between the two leakage preventing members is 0.8 times the width of the second absorbent layer, one of the left side edge parts of the leakage preventing members is flush with the left side edge part of the first absorbent layer, and the other of the right side edge parts of the leakage preventing members is flush with the right side edge part of the first absorbent layer.

Example 6

Example 6 is substantially the same as example 5 except that:

the dry and leak-proof absorbent article further comprises a moisture barrier layer arranged between the first absorbent layer and the second absorbent layer, wherein the width of the moisture barrier layer is the same as that of the first absorbent layer; the wet insulation layer comprises an upper non-woven fabric layer, a lower non-woven fabric layer and a plurality of hollow tubes which are vertically and uniformly arranged between the upper non-woven fabric layer and the lower non-woven fabric layer, wherein the pipe diameter of each hollow tube is 2mm, and the interval distance between every two adjacent hollow tubes is 2mm.

Example 7

Example 7 is substantially the same as example 1 except that:

the dry and leak-proof absorbent article further comprises a moisture-isolation layer arranged between the first absorbent layer and the second absorbent layer, wherein the widths of the upper surface and the lower surface of the moisture-isolation layer are the same as the widths of the first absorbent layer; the moisture-proof layer comprises two layers of non-woven fabrics, a plurality of diversion holes penetrating through the moisture-proof layer are uniformly formed in the moisture-proof layer, the aperture of each diversion hole is 2mm, and the interval distance between every two adjacent diversion holes is 2mm.

The absorbent articles (absorbent article width: 8 cm) of examples 1 to 7 were tested for their absorption performance, dryness and lateral diffusion properties, and the results are shown in Table 1.

The testing method comprises the following steps: taking animal blood for 2 times, each time of 5mL, and recording the time of finishing each time of absorption as the absorption speed in s at intervals of 10 minutes for 2 times; after 5mL of animal blood is absorbed by the absorbing article for 5min, 10g of filter paper is pressed by a weight of 1.2kg and placed on the absorbing article for 1min, and the gram weight added by the filter paper is measured as reverse osmosis result in g; the transverse diffusion length is 10mL of animal blood, and is recorded on the upper surface of the absorbent article after 1min, and the unit is cm.

TABLE 1

From the data in Table 1, it is clear that the animals of examples 1 and 5 to 7 have a fast blood absorption rate, good dryness, small lateral diffusion, and the dryness of example 6 is significantly better than that of examples 1, 5 and 7; in the utility model, the smaller the transverse diffusion length is, the smaller the possibility of side leakage is, which shows that the side leakage prevention effect is better.

The utility model is not described in detail in the area of the technical field, which is skilled in the art, can be designed according to the need.

It is specifically noted that, in the present utility model, the azimuth or positional relationship indicated by the terms "upper", "lower", "left", "right", etc., are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description and simplification of the description, and do not indicate or imply that the components referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present utility model; the specific meaning of the above terms in the present utility model can be understood as appropriate by those of ordinary skill in the art.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (10)

1. A dry and leak-proof absorbent article, characterized in that:

the dry and comfortable leak-proof absorbing article sequentially comprises a surface layer, a leak-proof component, an absorbing layer and a bottom layer from top to bottom;

the two leakage-proof parts are symmetrically arranged left and right;

the leakage-proof component is formed by sandwiching a polyurethane foam cotton layer by wet-process super absorbent resin absorbent paper, and the sandwiching angle is alpha, and alpha is more than 0 degrees and less than or equal to 45 degrees;

the polyurethane foam cotton layer is provided with a plurality of through holes penetrating through the upper surface and the lower surface of the polyurethane foam cotton layer.

2. The dry leak-proof absorbent article of claim 1, wherein:

15°＜α≤45°。

3. the dry leak-proof absorbent article of claim 1, wherein:

the aperture of the through holes is 0.5-5 mm, and the interval distance between two adjacent through holes is 1-3 mm.

4. A dry, leak-proof absorbent article as defined in claim 3, wherein:

the aperture of the through holes is 1-2 mm, and the interval distance between two adjacent through holes is 1-3 mm.

5. The dry leak-proof absorbent article of claim 1, wherein:

the absorption layer sequentially comprises a first absorption layer, a second absorption layer and a third absorption layer from top to bottom.

6. The dry leak-proof absorbent article of claim 5, wherein:

the first absorption layer is a polyurethane foam cotton layer, and a plurality of through holes penetrating through the upper surface and the lower surface of the polyurethane foam cotton layer are formed in the polyurethane foam cotton layer; and/or

The third absorption layer is made of super absorbent resin absorbent paper by wet method.

7. The dry leak-proof absorbent article of claim 5, wherein:

the widths of the first absorption layer and the third absorption layer are the same, and the width of the second absorption layer is smaller than that of the first absorption layer;

the minimum gap distance between the two leakage preventing parts is 0.6-1 times of the width of the second absorption layer.

8. The dry leak-proof absorbent article of claim 5, wherein:

the dry and leak-proof absorbent article further includes a moisture barrier layer disposed between the first absorbent layer and the second absorbent layer.

9. The dry leak-proof absorbent article of any one of claims 1 to 8, wherein:

the surface layer is hot air non-woven fabric, spun-bonded non-woven fabric or pure cotton non-woven fabric.

10. The dry leak-proof absorbent article of any one of claims 1 to 8, wherein:

the bottom layer is a breathable PE bottom film layer.